Key considerations for the selection and construction of fire-resistant coated boards
2025-08-27
Key points for purchasing
Priority should be given to products with testing reports: GB 8624 combustion performance testing report and fire resistance time limit testing report (such as GB/T 9978.1 fire resistance limit test) must be provided;
Matching scenario requirements: Choose water-resistant coated panels for humid environments (such as basements), choose color stable decorative coated panels for decoration requirements, and choose specialized panels with good adhesion to steel for steel structure protection;
Pay attention to coating integrity: When purchasing, check the surface coating of the board for scratches, bubbles, and no coating peeling off at the edges (coating damage will directly affect fire resistance).
Construction precautions
Base treatment: The base layer needs to be flat and dry (moisture content ≤ 10%), the concrete base layer needs to be cleaned of dust and oil stains, and the metal base layer needs to be derusted and coated with anti rust primer;
Splicing and sealing: The splicing joints of the boards need to be filled with fireproof sealant (to prevent smoke from penetrating through the gaps during a fire), and special fireproof corner strips need to be used to reinforce the corners;
Avoid damaging the coating: It is prohibited to use sharp tools to scratch the coating during construction. When cutting the board, a protective film should be attached to the coating side. After cutting, the section should be repainted with fireproof coating;
Finished product protection: Avoid heavy object impact after construction. If drilling is required later (such as installing hanging parts), the surrounding area of the hole should be sealed with fireproof sealant after drilling.
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